This mdr was generated under protocol (b)(4), as a result of warning letter cms# (b)(4).No lot number was provided; therefore, device history record review could not be completed.A product sample was received for evaluation.Visual and functional testing were performed.During the visual inspection, it was found that the sample had a foreign substance in it.The root cause of the reported issue was found to be manufacturing.Actions were taken to mitigate the reported issue: a system was generated to ensure that production personnel detect any foreign matter on the product.Production personnel was trained in this system.Udi information is unknown.Premarket (510k) number is unknown.
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